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DataBind ServiceNow Data to the DevExpress Data Grid

Use the CData ADO.NET Provider for ServiceNow with the DevExpress Windows Forms and Web controls to provide ServiceNow data to a chart.

The CData ADO.NET Provider for ServiceNow implements standard ADO.NET data access components that can be used with third-party controls. The standard ADO.NET process for databinding can be followed to enable bidirectional access to live data from UI controls. In this article we show how to use the CData components to databind to the DevExpress Windows Forms and Web controls; you will databind to a chart that displays current data.

ServiceNow はOAuth 2.0 認証標準を利用しています。OAuth を使って認証するには、ServiceNow にOAuth アプリを登録してOAuthClientId を取得しなければなりません。OAuth 値の他に、Instance、User、およびPassword の指定が必要です。

OAuth 認証を介した接続について詳しくは、OAuth 認証の使用 を参照してください。

Windows Forms Controls

The code below shows how to populate a DevExpress chart with ServiceNow data. The ServiceNowDataAdapter binds to the Series property of the chart control. The Diagram property of the control defines the x- and y-axes as the column names.

using (ServiceNowConnection connection = new ServiceNowConnection( "OAuthClientId=MyOAuthClientId;OAuthClientSecret=MyOAuthClientSecret;Username=MyUsername;Password=MyPassword;Instance=MyInstance;")) { ServiceNowDataAdapter dataAdapter = new ServiceNowDataAdapter( "SELECT sys_id, priority FROM incident", connection); DataTable table = new DataTable(); dataAdapter.Fill(table); DevExpress.XtraCharts.Series series = new DevExpress.XtraCharts.Series(); chartControl1.Series.Add(series); series.DataSource = table; series.ValueDataMembers.AddRange(new string[] { "priority" }); series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Qualitative; series.ArgumentDataMember = "sys_id"; series.ValueScaleType = DevExpress.XtraCharts.ScaleType.Numerical; chartControl1.Legend.Visibility = DevExpress.Utils.DefaultBoolean.False; ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true; }

Web Controls

The code below shows how to populate a DevExpress Web control with ServiceNow data. The ServiceNowDataAdapter binds to the Series property of the chart; the Diagram property defines the x- and y-axes as the column names.

using DevExpress.XtraCharts; using (ServiceNowConnection connection = new ServiceNowConnection( "OAuthClientId=MyOAuthClientId;OAuthClientSecret=MyOAuthClientSecret;Username=MyUsername;Password=MyPassword;Instance=MyInstance;")) { ServiceNowDataAdapter ServiceNowDataAdapter1 = new ServiceNowDataAdapter("SELECT sys_id, priority FROM incident", connection); DataTable table = new DataTable(); ServiceNowDataAdapter1.Fill(table); DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar); WebChartControl1.Series.Add(series); series.DataSource = table; series.ValueDataMembers.AddRange(new string[] { "priority" }); series.ArgumentScaleType = ScaleType.Qualitative; series.ArgumentDataMember = "sys_id"; series.ValueScaleType = ScaleType.Numerical; ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true; }
 
 
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